The present invention relates to the technical field of batteries, and discloses an electrical conductor of a storage battery; a tab (2) is located on a side edge of a side frame (1), and various horizontal ribs (3) and vertical ribs (4) are conductively disposed crosswise on a surface of the side frame; at least one main vertical rib (401) from among the plurality of vertical ribs is located on a same straight line as the tab, while the remaining vertical ribs are sequentially arranged at two sides by using the main vertical rib as a baseline; the interval between two vertical ribs gradually shrinks from an end close to the tab to an end far from the tab, while the width of the vertical ribs decreases in the direction moving away from the main vertical rib, and the interval between two vertical ribs gradually decreases, each vertical rib being cone-shaped, and an end close to the tab being thicker; the plurality of horizontal ribs extends to two sides by using the main vertical rib as an end line. The present electrical conductor effectively balances the utilization rate of an active substance in each part of a lead paste and effectively extends the service life.